package com.lin.reggie.config;

import com.lin.reggie.common.JacksonObjectMapper;
import lombok.extern.slf4j.Slf4j;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.cbor.MappingJackson2CborHttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;

import java.util.List;

/**
 * @auther lin
 * @create 2022-05-26 09:25
 */
@Slf4j
@Configuration
public class WebMvcConfig extends WebMvcConfigurationSupport {

    //设置静态资源映射
    @Override
    protected void addResourceHandlers(ResourceHandlerRegistry registry) {
        log.info("开启静态资源映射");
        registry.addResourceHandler("/backend/**").addResourceLocations("classpath:/backend/");
        registry.addResourceHandler("/front/**").addResourceLocations("classpath:/front/");

    }
    //扩展mvc框架的消息转换器
//    @Override
//    protected void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
//        //创建一个新的消息转换器
//        MappingJackson2CborHttpMessageConverter mappingJackson2CborHttpMessageConverter = new MappingJackson2CborHttpMessageConverter();
//        //设置转换器，底层使用Jackson将java转化位json
//        mappingJackson2CborHttpMessageConverter.setObjectMapper(new JacksonObjectMapper());
//        //将自己的json转化器放到最前面来保证使用的是自己的转换器
//        converters.add(0,mappingJackson2CborHttpMessageConverter);
//    }
    /**
     * 扩展mvc框架的消息转换器
     * @param converters
     */
    @Override
    protected void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
        log.info("扩展消息转换器...");
        //创建消息转换器对象
        MappingJackson2HttpMessageConverter messageConverter = new MappingJackson2HttpMessageConverter();
        //设置对象转换器，底层使用Jackson将Java对象转为json
        messageConverter.setObjectMapper(new JacksonObjectMapper());
        //将上面的消息转换器对象追加到mvc框架的转换器集合中
        converters.add(0,messageConverter);
    }
}
